what is thae main difference between foreingkey and
primarykey
- 5 Answers
- 7079 Views
- I also Faced
- E-Mail Answers
Answer Posted / karthik
primary key:a primary key is combination of unique,and not
null constraint and a table can have only one primary key
foreign key ;
a foreign key is a reference of the primary key and returns
reference from itself or from other table data
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
